trail - evidence pointing to a possible solution; the police are following a promising lead; the trail led straight to the perpetrator track, lead evidence, grounds - your basis for belief or disbelief; knowledge on which to base belief; the evidence that smoking causes lung cancer is very compelling
The process by which the oceanic crust is pulled under the continental crust is called subduction and the zone at which this occurs at the plate boundaries is called the subduction zone. At the subduction zone where the oceanic crust sinks beneath the continental crust a deep oceanic trench or valley is created.
B. Plates pulling apart. 52. Chains of volcanoes form where. A. A continental and an ocean plates collide and the edge of the oceanic plate melts as it sink into the mantle. The melted rock becomes magma. B. A continental and an ocean plates collide and the edge of the continental plate melts as it sink into the mantle. The melted rock becomes magma. C. A continental and an ocean plates collide and the edge of the oceanic plate melts as it sink into the core.